春运初期坐上气温过山车

Group 1 - The core viewpoint of the articles highlights the significant temperature fluctuations in Guangxi due to cold air masses, affecting the region's weather patterns leading up to the Spring Festival travel period [1][2] - From January 31 to February 1, temperatures in Guangxi dropped by 5 to 10 degrees Celsius compared to the same time on January 30, with specific areas experiencing rain and icy conditions [1] - The lowest temperatures recorded during this cold spell were between -4°C to 2°C in high-altitude areas, and 7°C to 13°C in other regions, with Nanning experiencing temperatures between 11°C to 16°C [1] Group 2 - The weather forecast for Nanning indicates a transition from cloudy conditions to sunny weather, with temperatures expected to rise from 11°C to 22°C between February 2 and 3 [2] - A new cold air mass is anticipated to impact Guangxi again from February 5 to 6, although it is expected to be weaker with a smaller temperature drop [1] - The upcoming week will see rapid weather changes, with temperatures fluctuating significantly, and a notable cold front expected to affect central and eastern China, causing temperature drops of 4°C to 8°C, and locally up to 10°C to 12°C [2]